四、 文意選填 (每題 1 分，共 10 分)

   A trip to the supermarket has now become an exercise in psychological warfare.Shopkeepers know that filling a store with the smell of freshly baked bread makes people feelhungry and _(36)_them to buy more food than they intended. Stocking the most _(37)_ productsat eye level helps them sell faster than cheaper but less visible competitors. Researchers oncustomer behavior are now investigating how “swarm intelligence” (that is, how social animalslike ants or bees behave in a crowd) can be used to _(38)_what people buy. The idea is that, if acertain product is seen to be popular, shoppers are _(39)_ to choose it too. With the help ofmodern technology, some supermarkets are now able to keep customers _(40)_ about what othersare buying. As a customer walks past a shelf of goods in one of these supermarkets, a screen onthe shelf will tell him how many people currently in the store have chosen that particular _(41)_.As it turns out, such a “swarm moves” model _(42)_ sales without the need to give peoplediscounts. The reason is simple: it gives shoppers the _(43)_ of knowing that they bought the“right” product—that is, the one everyone else bought. The psychology that works in physicalstores is just as _(44)_ on the Internet. Online retailers such as Amazon are good at tellingshoppers which products are popular with like-minded consumers. Even in the _(45)_ of yourhome, you can still be part of the swarm.